// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_CHILD_MEMORY_CHILD_MEMORY_MESSAGE_FILTER_H_
#define CONTENT_CHILD_MEMORY_CHILD_MEMORY_MESSAGE_FILTER_H_

#include "base/macros.h"
#include "base/memory/memory_pressure_listener.h"
#include "ipc/message_filter.h"

namespace content {

// This class receives memory messages in child processes.
// See also: memory_message_filter.h
class ChildMemoryMessageFilter : public IPC::MessageFilter {
public:
    ChildMemoryMessageFilter();

    // IPC::MessageFilter implementation.
    bool OnMessageReceived(const IPC::Message& message) override;

protected:
    ~ChildMemoryMessageFilter() override;

private:
    void OnSetPressureNotificationsSuppressed(bool suppressed);
    void OnSimulatePressureNotification(
        base::MemoryPressureListener::MemoryPressureLevel level);
    void OnPressureNotification(
        base::MemoryPressureListener::MemoryPressureLevel level);

    DISALLOW_COPY_AND_ASSIGN(ChildMemoryMessageFilter);
};

} // namespace content

#endif // CONTENT_CHILD_MEMORY_CHILD_MEMORY_MESSAGE_FILTER_H_
